Troubleshooting - Kärcher K120 M Operator's Manual

TROUBLESHOOTING

Symptom
No detergent.
Garden hose
connection leaks.
Spray wand or
Spray wand
11
extension leaks.
Pump is noisy.
Water leaks from
pump (up to 10
drops per minute
is permissible).
Oil Drip.
– continued
Cause
Detergent suction tube not
properly connected to the
machine.
Detergent is too thick.
Filter on detergent suction
tube is clogged.
Damaged or clogged
detergent suction tube.
Soap nozzle not installed
Discharge nozzle is
obstructed.
Loose fittings.
Missing/worn rubber washer. Insert new washer.
Spray wand not properly
attached.
Spray wand extension not
properly attached.
Broken o-ring or plastic
insert.
Pump is sucking air.
Loose fittings.
Water seals are damaged
or worn.
Oil seals are damaged or
worn.
Solution
Check connection.
Dilute detergent, for best results use
Kärcher detergent.
Run warm water through filter to
remove debris.
Remove obstruction or replace
detergent suction tube.
Attach soap nozzle to spray wand
extension.
Blow out or remove debris with fine
needle.
Tighten fittings.
Insert the spray wand into the spray
wand extension. Carefully press in
against the spring tension and twist
into the locked position.
Slide the spray wand extension into
the gun. Turn the wand collar clock-
wise onto the gun threads until tight.
Call Kärcher customer service
hotline and order repair kit
(part no. 2.883-111.0).
Check that hoses and fittings are air
tight. Turn off machine and purge
pump by squeezing trigger gun until
a steady flow of water emerges
through the nozzle.
Check that all fittings are tight.
Call service center.
Call service center.
If you encounter any additional
difficulties not listed, please call
our service center for help.
Karcher Customer Support USA
1-800-537-4129